Tread for pneumatic tires



FIG. 1 is a front elevational view of a tread for pneumatic tires showing my new design, it being understood that the tread pattern repeats circumferentially throughout the outer circumference;

FIG. 2 is a perspective view of one side of the tread for pneumatic tires shown in FIG. 1; and,

FIG. 3 is a side elevational view of one side of the tread for pneumatic tires shown in FIG. 1, the opposite side being of identical appearance.

The broken lines in the drawings depict environmental subject matter only and form no part of the claimed design. 

The ornamental design for a tread for pneumatic tires, as shown and described. 